Version 5.0 The LEDA User Manual

void random points near circle(int n, int R, list& L)
returns a list L of n points . . . .
void random point near unit circle(POINT & p, int D = (1 ≪ 30) − 1)
returns a point close to the unit circle whose coordinates
are quotients with denominator D. The default
value of D is 2 30 − 1.
void random points near unit circle(int n, int D, list& L)
returns a list L of n points . . . .
void random points near unit circle(int n, list& L)
void random point near sphere(POINT & p, int R)
returns a list L of n points . . . . The default value of
D is used.
returns a point with integer coordinates close to the
sphere with radius R centered at the origin.
void random points near sphere(int n, int R, list& L)
returns a list L of n points . . . .
void random point near unit sphere(POINT & p, int D = (1 ≪ 30) − 1)
returns a point close to the unit sphere whose coordinates
are quotients with denominator D. In 2d this
function is equivalent to point near unit circle.
void random points near unit sphere(int n, int D, list& L)
returns a list L of n points . . . .
void random points near unit sphere(int n, list& L)
returns a list L of n points . . . . The default value of
D is used.
Wit the rational kernel the functions on circle are guaranteed to produce points that lie
precisely on the specified circle. With the floating point kernel the functions are equivalent
to the near circle functions.
void random point on circle(POINT& p, int R, int C = 1000000)
returns a random point with integer coordinates that
lies on the circle with radius R centered at the origin.
The point is chosen from a set of at least C candidates.
void random points on circle(int n, int R, list& L, int C = 1000000)
returns a list L of n points . . . .
void random point on unit circle(POINT & p, int C = 1000000)
returns a point on the unit circle. The point is chosen
from a set of at least C candidates.